Kartar Dual Plate NRVs are compact, spring-assisted wafer-type non-return valves designed to automatically prevent reverse flow in pipelines. The dual spring-loaded plates open with forward flow and close rapidly when the flow stops, minimizing water hammer and protecting pumps, compressors, and piping systems. These valves are ideal for water supply, fire protection, HVAC, irrigation, and industrial process applications. Design & Construction: Body Material: Cast Iron (CI) / Ductile Iron (DI) Disc Material: Stainless Steel (SS304 / SS316) or SG Iron (model dependent) Spring Material: Stainless Steel Seat Material: EPDM / NBR (application dependent) Hinge Pin: Stainless Steel Type: Wafer Type, Dual Plate, Spring Assisted End Connection: Wafer Type (Suitable for PN10 / PN16 Flanges) Standards & Specifications: Design Standard: API 594 / IS 5312 (applicable models) Testing Standard: API 598 Pressure Rating: PN10 / PN16 Available Sizes: DN50 (50 mm) to DN600 (600 mm) Installation: Horizontal or Vertical (upward flow) depending on service conditions. Features: Compact wafer design with reduced face-to-face dimensions Dual spring-loaded plates for quick closing Prevents reverse flow and minimizes water hammer Low pressure drop Corrosion-resistant construction Lightweight and easy to install Low maintenance and long service life Suitable for high-flow industrial applications Applications: Water Supply & Distribution Systems Fire Fighting Systems HVAC Installations Pump Discharge Lines Irrigation Networks Water & Wastewater Treatment Plants Industrial Utility Pipelines Chemical & Process Industries Advantages: Fast-closing mechanism protects pumps and pipelines Compact and lightweight compared to swing check valves Reliable leak-tight performance Easy installation between flanges Long service life with minimal maintenance Manufactured in a wide range of sizes for commercial and industrial applications.

Kartar Double Orifice Kinetic Air Valves are designed to automatically release large volumes of trapped air during pipeline filling and continuously release small air pockets during operation. They also admit air rapidly during pipeline draining, preventing vacuum formation and protecting pipelines from collapse and water hammer. These valves are ideal for water supply, irrigation, sewage, fire protection, and industrial utility pipelines. They are manufactured in accordance with IS 14845 standards and are available in tamper-proof designs. Design & Construction: Body Material: Cast Iron (CI) / Ductile Iron (DI) Cover: Cast Iron / Ductile Iron Float Material: Stainless Steel (SS304) or Rubber-Coated Float (model dependent) Internal Components: Stainless Steel / Bronze Seat Material: Nitrile Rubber (NBR) / EPDM Operation: Automatic Float Operated End Connection: Flanged Ends Standards & Specifications: Design Standard: IS 14845 Pressure Rating: PN10 / PN16 Available Sizes: DN40 (40 mm) to DN150 (150 mm) End Flange: IS / BS Standard Drilling Testing: Hydraulic Shell & Seat Test as per IS 14845 Features: Double orifice design for efficient air release Automatically releases large and small volumes of air Admits air during pipeline emptying to prevent vacuum Reduces water hammer and surge effects Tamper-proof construction available Corrosion-resistant epoxy-coated body Low maintenance with long service life Smooth and reliable float mechanism Applications: Water Supply & Distribution Networks Irrigation Projects Pumping Stations Water Treatment Plants Sewage & Wastewater Systems Fire Fighting Networks Industrial Utility Pipelines Municipal Infrastructure Projects Advantages: Prevents air locking and vacuum formation Improves pipeline efficiency and pump performance Protects pipelines from water hammer Durable construction with corrosion-resistant coating Reliable automatic operation with minimal maintenance Manufactured under ISO 9001-certified quality systems and compliant with IS 14845 requirements.

Kartar Air Valves are designed to automatically release trapped air and admit air into pipelines, ensuring smooth and efficient operation of water distribution systems. They help prevent air pockets, vacuum formation, water hammer, and pipeline damage, thereby improving system efficiency and extending pipeline life. These valves are widely used in water supply, irrigation, sewage, fire protection, and industrial utility systems. Design & Construction: Body Material: Cast Iron (CI) / Ductile Iron (DI) Float Material: Stainless Steel (SS304) / Polypropylene (model dependent) Internal Components: Stainless Steel Seat Material: Nitrile Rubber (NBR) / EPDM Cover: Bolted Cover End Connection: Flanged Ends (PN10 / PN16) Standards & Specifications: Pressure Rating: PN10 / PN16 Available Sizes: DN25 (25 mm) to DN200 (200 mm) Flange Standard: IS / BS / EN Standard Drilling Testing: Hydraulic Shell & Seat Test as per applicable standards Features: Automatic air release during pipeline operation Admits air during pipeline emptying to prevent vacuum Prevents air locking and water hammer Corrosion-resistant construction Low maintenance and long service life Reliable float-operated mechanism Suitable for above-ground and underground pipeline installations Easy installation and servicing Applications: Water Supply & Distribution Networks Irrigation Systems Pumping Stations Water Treatment Plants Sewage & Wastewater Systems Fire Fighting Networks Industrial Utility Pipelines Municipal Infrastructure Projects Advantages: Eliminates trapped air from pipelines Protects pipelines from vacuum collapse Reduces water hammer effects Improves flow efficiency and pump performance Durable, leak-proof construction Long operational life with minimal maintenance Manufactured under ISO 9001-certified quality systems by Kartar Valves.